Merge 72938 - 2010-11-30 Pavel Feldman <pfeldman@chromium.org>...

WebCore/inspector/front-end/SourceView.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 129 matching lines @@
     {
         var lines = [];
         var textModel = this.sourceFrame.textModel;
         for (var i = 0; i < textModel.linesCount; ++i) {
             if (i === line)
                 lines.push(newContent);
             else
                 lines.push(textModel.line(i));
         }
 
-        var linesCountToShift = newContent.split("\n").length - 1;
-        var newContent = lines.join("\n");
-        WebInspector.panels.scripts.editScriptSource(this._sourceIDForLine(line), newContent, line, linesCountToShift, this._editLineComplete.bind(this, newContent), cancelEditingCallback);
+        var editData = {};
+        editData.sourceID = this._sourceIDForLine(line);
+        editData.content = lines.join("\n");
+        editData.line = line;
+        editData.linesCountToShift = newContent.split("\n").length - 1;
+
+        WebInspector.panels.scripts.editScriptSource(editData, this._editLineComplete.bind(this, editData), cancelEditingCallback);
     },
 
-    _editLineComplete: function(newContent)
+    _editLineComplete: function(editData, newContent)
     {
-        this.resource.content = newContent;
+        this.resource.setContent(newContent, this._revertEditLine.bind(this, editData));
+    },
+
+    _revertEditLine: function(editData, contentToRevertTo)
+    {
+        var newEditData = {};
+        newEditData.sourceID = editData.sourceID;
+        newEditData.content = editData.content;
+        newEditData.line = editData.line;
+        newEditData.linesCountToShift = -editData.linesCountToShift;
+        WebInspector.panels.scripts.editScriptSource(newEditData, this._editLineComplete.bind(this, newEditData));
     },
 
     _sourceIDForLine: function(line)
     {
         var sourceID = null;
         var closestStartingLine = 0;
         var scripts = this.resource.scripts;
         for (var i = 0; i < scripts.length; ++i) {
             var script = scripts[i];
             if (script.startingLine <= line && script.startingLine >= closestStartingLine) {
@@ skipping 119 matching lines @@
         this._sourceFrameSetup = true;
         this.resize();
         if (this._delayedFindSearchMatches) {
             this._delayedFindSearchMatches();
             delete this._delayedFindSearchMatches;
         }
     }
 }
 
 WebInspector.SourceView.prototype.__proto__ = WebInspector.ResourceView.prototype;